Comment on 'Flexural behavior of a rotating sandwich tapered beam' and on 'Dynamic analysis for free vibrations of rotating sandwich tapered beams'

AIAA Journal ◽  
1995 ◽  
Vol 33 (6) ◽  
pp. 1168-1170 ◽  
Author(s):  
Dewey H. Hodges
Keyword(s):  
Dynamic Analysis ◽  
Free Vibrations ◽  
Flexural Behavior ◽  
Tapered Beam

Dynamic Analysis of Steel-Concrete Composite Frames with Partial Interaction

2012 ◽  
Vol 594-597 ◽  
pp. 904-907 ◽  
Author(s):  
Jun Xia ◽  
Z. Shen ◽  
Bin Chen
Keyword(s):  
Boundary Condition ◽  
Free Vibration ◽  
Dynamic Analysis ◽  
Free Vibration Analysis ◽  
Slip Boundary Condition ◽  
Composite Beams ◽  
Free Vibrations ◽  
Frame Structures ◽  
Shear Connection ◽  
Slip Boundary

The finite element formulations of steel-concrete composite (SCC) beams considering interlayer slip with end shear restraint were established. Free vibrations of SCC beams and frame structures under different slip boundary conditions were examined. The influences of the shear connection stiffness and the slip boundary condition on dynamic characteristics were analyzed. It is shown that the low order 8-DOF element may exhibit slip locking phenomenon in free vibration analysis for very stiff connection. The free vibration frequencies of composite beams and frame structures increase with the shear connection stiffness increasing. Besides, it is found that the natural vibration properties of SCC frame structures are significantly affected by the slip boundary condition, and it should be suitably imposed on all composite beams in dynamic analysis.

FE Meshing Tool for the Dynamic Analysis of Beam-Like Structures

1991 ◽  
Author(s):  
M. De Smet ◽  
H. Van Brussel ◽  
P. Sas
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Adaptive Mesh Refinement ◽  
Dynamic Behaviour ◽  
A Priori ◽  
Adaptive Mesh ◽  
Structural Dynamic ◽  
Resonant Frequencies ◽  
Tapered Beam ◽  
Mesh Density

Abstract This paper outlines a methodology for the automatic creation of finite element meshes used for calculating structural dynamic behaviour. Starting from the idealized geometry of the structure, the proposed Intelligent Meshing Tool determines a mesh density that a priori guarantees the resonant frequencies to be calculated within predetermined accuracy limits. Unlike most existing techniques for automatic meshing, this technique is not inherently adaptive, but does not exclude an extra adaptive mesh refinement step, either. Implementation of this methodology is discussed for structures composed of straight uniform, curved and tapered beam-like components. The feasibility of the meshing strategy is illustrated by means of an example.

Flexural behavior of a rotating sandwich tapered beam

AIAA Journal ◽  
1989 ◽  
Vol 27 (3) ◽  
pp. 359-369 ◽  
Author(s):  
C. L. Ko
Keyword(s):  
Flexural Behavior ◽  
Tapered Beam

Dynamic analysis of composite columns in Inelastic state

2013 ◽  
Vol 2 (3) ◽  
pp. 209
Author(s):  
Mohsen Rezaie Hajidehi ◽  
Abolfazl Darvizeh ◽  
Malek Mohammad Ranjbar
Keyword(s):  
Dynamic Analysis ◽  
Seismic Behavior ◽  
Poor Performance ◽  
Flexural Behavior ◽  
Composite Columns ◽  
Concrete Type ◽  
Steel Sections ◽  
Type 3

The main objective of this study is analyzing Seismic behavior of composite columns in frame in inelastic state under dynamic load. Therefore, three type of composite column have been used in this paper. IPB Steel section embedded in concrete (type 1), Concrete-filled thin-walled steel sections (type 2), half concreted IPB sections (type 3) which are designed for 3 and 8 floor frame tenement in plastic way. Three earthquake accelerogram have been used for analyzing model seismic behavior and model analysis has been done in non-linear dynamic analysis with Seismostruct application. The results demonstrated that frame designed by composite columns type 1 and 3 in the flexural behavior, have similar construction behavior in the way that plasticity, softness and good function to dispose lateral forces are the same. Although Type 2 composite model have large sections, have poor performance in tolerating flexural moment. This event refers to poor role of concrete in tension. On the other hand, the amount of concrete is important in Withstand compressive forces and in constructions with high compressive forces, type 1 and 2 have better performance.

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